| Rock Island to Isabela (Puerto Rico) | 2,108.61 mi (3,393.48 km) |
| Rock Island to Iselin (New Jersey) | 848.94 mi (1,366.23 km) |
| Rock Island to Isla Vista (California) | 1,659.13 mi (2,670.11 km) |
| Rock Island to Issaquah (Washington) | 1,594.09 mi (2,565.45 km) |
| Rock Island to Ithaca (New York) | 725.70 mi (1,167.90 km) |
| Rock Island to Ives Estates (Florida) | 1,224.63 mi (1,970.86 km) |
| Rock Island to Jackson (Michigan) | 322.36 mi (518.79 km) |
| Rock Island to Jackson (Mississippi) | 632.82 mi (1,018.43 km) |
| Rock Island to Jackson (Missouri) | 286.96 mi (461.82 km) |
| Rock Island to Jackson (Tennessee) | 412.77 mi (664.28 km) |
| Rock Island to Jackson (Wyoming) | 1,035.72 mi (1,666.84 km) |
| Rock Island to Jacksonville (Alabama) | 591.33 mi (951.65 km) |
| Rock Island to Jacksonville (Arkansas) | 462.94 mi (745.03 km) |
| Rock Island to Jacksonville (Florida) | 915.73 mi (1,473.72 km) |
| Rock Island to Jacksonville (Illinois) | 121.67 mi (195.81 km) |
